Can for holding blasting-cartridges



2o disks, with a screw-thread on their periphe drawings, in which Figure 1 represents a side UNITED- STATES PATENT OFFICE.

CHAUNCEY C. ,VVHITE, OF PECKVILLE, PENN$YLVANIA.

SPECIFICATION" forming part of Letters P atent No. 287,785, .dated October 30, 1883,

Application filed August 9, 1883. (No model.)

['0 01,66 whom it may concern:

Be it known that I, CHAUNOEY 0. WHITE, of Peekville, in the county of Lackawanna and State of Pennsylvania, have invented a .5 new and useful Improvement in Cans for Holdlng Blasting-Cartridges; and I do hereby declare that the following is a full, clear,- and exact description of the same.

My invention relatesto cans for blasting- IO cartridges, such as are ordinarily used, by

miners. i

It consists of an improved head, and of improved devices for attaching the cover to the body of the can. 7 The cans ordinarily used for this purpose are similar .to a-length of stove pipe, being a plain cylinder, of sheet-iron, twenty four inches in length by eight inches in diameter. The heads in these cans consist of wooden I cry, to fit a screw-thread pressed into the periphery of the can at the ends thereof. The heads are turned into the cans, and are held only by these low round threads, which af- 2 5 ford an imperfect hold, and the heads are liableto fall out during transportation and handling." In fact manydo thus fall .out, and the powder is spilled, thus wasting the powder and causing liability of explosion. Further,

in this form of cans, although the heads are supposed to be taken'out by unscrewing, they are in practice never so removed. Thehea'ds are usually taken out by the miners, who

punch them out-with a drill-bar, and in so doingsplit the heads or lose them. At the same time the edge of the can is split and bent, so that the can and head are both injured or altogether ruined. The injury is serious, as, if the cans are used again, the

40 rough or split edges-are apt to tear the paper of the.'cartridges and cause waste of powder and danger of explosion. Still further, this ,old method of putting in the heads of the cans does not make a tight joint, and powder,

5ywhich requiresto be kept inair-tight cases,

soon spoils in the old cans. My invention obyiatesthese defects in the particulars hereinafter described. 'The can is shown in the accompanying elevation of the can. Fig. 2shows a central longitudinal section.

In these drawings, A represents the body of the can. It is of the ordinary dimensions, and is formed practically cylindrical throughout. The heads a are plainwooden disks, with a groove, 1, in the periphery. These heads are inserted into the cylinder, and'the sheet metal is then rolled into the groove. This makes a tight joint, and the head cannot be removed without the use of great force. The outer edge of the disk m'ay be beveled, and the edge of the metal turned down, if preferred" This is shown at 2 in Fig. 2. As the heads are not removable, I provide other means for the introduction and removal of the cartridges. For this purpose I prepare a cap, 13, which fits snugly over the open end of the can A. This cap has a head, made in the manner above described. Thewalls of this cap are provided with small studs 4,, short, blunt, and stout, which are fitted to a groove, 5, in the wall of the can, on the outside and at the end. The grooves are in the form of a bayonet-joint slot, I except that they are merely an indentation or groove in the outer surface of the case. The grooves are on opposite sides, and register with the studs, so that the cover or cap may be slipped on till the studs-reach the bottom of the grooves, when the cap is turned to carry the studs into the horizontal parts of the grooves Th aholds thecap securely in place, but permits easy removal;

It will be observed in Fig. 2 that the cap is put on far enough to bring the edge of the open end of the can nextto the wood, sons to bear against it. This securely protects the edge, and prevents it from becoming battered and rough,'whereby it is liable to tear the cartridge-paper, as hereinbefore explained. 9o

.T-he cans constructed as above described are very much increased in strength, and are not liable to be iiijiired imtransportation byn reason of the double thickness at the cap end. The pro iection afi'orded by the cap to the open 5 .end of the can prolongs thelife of the cans, and j effects a very great saving. It benefits"both the packers and the users, as it saves the cans and relieves the miners from liability of danger and waste of the powder. It also expedites repacking,'and prevents the tearing of the cartridges. I

I aware that cans have been devised for other purposes with .the tin body or cap attached to the head by turning the edge of the tin into the periphery of the woodenhead. Myinvention differs from this construction in this respect, that the tin body or cap wholly covers .and

protects the head, and by the peripheral in-z dentation or groove holds the head .more se- 5' that described by me, and'I limit my invention in this respect tothe arrangement described, in which the edge of the'body of the can is made to bear against the wooden head upon the inside, whereby-a more secure joint is-afiorded, and the edge is protected against indentations by blows from the outside.

I- claim as my invention- 1. A-can for cartridges, consisting'of a cylindrical body and a cylindrical cap of the material described, the cap being adapted to fit snugly over the end of the. body, and grooved wooden heads'inserted' into the cylindriealcap and body and held therein by a groove formed the grooves being formed to draw the wooden head down snugly upon the end of the body,

as set forth. 7

In testimony whereof I have signed my name tothisspecification in the vpresence of two subscribing witnesses. v V

CHAUNOEY O. \VHITE. \Vitnesses:

'GH'As. T. WHITE. Gno. OIPnoK. 

